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Wmic path SoftwareLicensingService get OA3xOriginalProductKey Other Options you should Consider Before Downgradingįor computers upgraded to Windows 10 from Windows 8.1 or Windows 7, a limited option is available within 30 days to roll back to your previous version. Press Windows key + X then click Command Prompt (Admin), at the command prompt, type the following command, then hit Enter on your keyboard.

Please note, this is for OEM preinstalled Windows 10 Pro licenses only.

Have a copy of your Windows 10 Pro OEM product key available, just in case Microsoft support needs to verify it during activation.

External hard disk to back up your Windows 10 installation.

Necessary hardware drivers for either Windows 7 or Windows 8.1.

If you are exercising downgrade rights from Windows 10 Pro OEM, this key can be either a retail upgrade, full version, OEM preinstalled, or System Builder product key.

A product key from a computer that is running Windows 7 Professional or Windows 8.1 Pro.

If your system came preinstalled with Windows 10 Pro, you’d need to download or borrow a Windows 7 Professional or Windows 8.1 Pro disc. If you don’t have a license, you will have to purchase a Windows 7 or Windows 8.1 license.

The copy of Windows 7 or Windows 8.1 you want to downgrade.

You Can Revert a Windows 10 Upgrade to Windows 7/8.1 but Don’t Delete Windows.oldĭowngrading is an involved process I strongly recommend you have everything in place before you start this project, such as:.Rollback Windows 10 Upgrade to Windows 7 or 8.1.For more on rolling back, check out one of the following articles: When you upgrade Windows 7 or 8.1 to Windows 10, you have a 30-day window where you can roll it back to the previous version and not lose any of your data. Important Note: This is a different process than rolling your Windows 10 upgrade back to the previous version.